drivers/net/wireless/brcm80211/brcmfmac/p2p.h

   1 /*
   2  * Copyright (c) 2012 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #ifndef WL_CFGP2P_H_
  17 #define WL_CFGP2P_H_
  18
  19 #include <net/cfg80211.h>
  20
  21 struct brcmf_cfg80211_info;
  22
  23 /* vendor ies max buffer length for probe response or beacon */
  24 #define VNDR_IES_MAX_BUF_LEN 1400
  25 /* normal vendor ies buffer length */
  26 #define VNDR_IES_BUF_LEN 512
  27
  28 /* Structure to hold all saved P2P and WPS IEs for a BSSCFG */
  29 /**
  30  * enum p2p_bss_type - different type of BSS configurations.
  31  *
  32  * @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
  33  * @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
  34  * @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
  35  * @P2PAPI_BSSCFG_MAX: used for range checking.
  36  */
  37 enum p2p_bss_type {
  38         P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
  39         P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
  40         P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
  41         P2PAPI_BSSCFG_MAX
  42 };
  43
  44 /**
  45  * struct p2p_bss - peer-to-peer bss related information.
  46  *
  47  * @vif: virtual interface of this P2P bss.
  48  * @private_data: TBD
  49  */
  50 struct p2p_bss {
  51         struct brcmf_cfg80211_vif *vif;
  52         void *private_data;
  53 };
  54
  55 /**
  56  * enum brcmf_p2p_status - P2P specific dongle status.
  57  *
  58  * @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
  59  * @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
  60  * @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
  61  * @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
  62  * @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
  63  * @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
  64  * @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
  65  * @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
  66  * @BRCMF_P2P_STATUS_REMAIN_ON_CHANNEL: P2P listen, remaining on channel.
  67  */
  68 enum brcmf_p2p_status {
  69         BRCMF_P2P_STATUS_IF_ADD = 0,
  70         BRCMF_P2P_STATUS_IF_DEL,
  71         BRCMF_P2P_STATUS_IF_DELETING,
  72         BRCMF_P2P_STATUS_IF_CHANGING,
  73         BRCMF_P2P_STATUS_IF_CHANGED,
  74         BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
  75         BRCMF_P2P_STATUS_ACTION_TX_NOACK,
  76         BRCMF_P2P_STATUS_GO_NEG_PHASE,
  77         BRCMF_P2P_STATUS_REMAIN_ON_CHANNEL
  78 };
  79
  80 /**
  81  * struct brcmf_p2p_info - p2p specific driver information.
  82  *
  83  * @cfg: driver private data for cfg80211 interface.
  84  * @status: status of P2P (see enum brcmf_p2p_status).
  85  * @dev_addr: P2P device address.
  86  * @int_addr: P2P interface address.
  87  * @bss_idx: informate for P2P bss types.
  88  * @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
  89  * @ssid: ssid for P2P GO.
  90  * @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
  91  * @remain_on_channel: contains copy of struct used by cfg80211.
  92  * @next_af_subtype: expected action frame subtype.
  93  * @send_af_done: indication that action frame tx is complete.
  94  */
  95 struct brcmf_p2p_info {
  96         struct brcmf_cfg80211_info *cfg;
  97         unsigned long status;
  98         u8 dev_addr[ETH_ALEN];
  99         u8 int_addr[ETH_ALEN];
 100         struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
 101         struct timer_list listen_timer;
 102         struct brcmf_ssid ssid;
 103         u8 listen_channel;
 104         struct ieee80211_channel remain_on_channel;
 105         u8 next_af_subtype;
 106         struct completion send_af_done;
 107 };
 108
 109 void brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg,
 110                       struct brcmf_cfg80211_vif *vif);
 111 void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
 112 struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 113                                        enum nl80211_iftype type, u32 *flags,
 114                                        struct vif_params *params);
 115 int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
 116 int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
 117                        enum brcmf_fil_p2p_if_types if_type);
 118 int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 119 void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
 120 int brcmf_p2p_scan_prep(struct wiphy *wiphy,
 121                         struct cfg80211_scan_request *request,
 122                         struct brcmf_cfg80211_vif *vif);
 123 int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
 124                                 struct ieee80211_channel *channel,
 125                                 unsigned int duration, u64 *cookie);
 126 int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
 127                                      const struct brcmf_event_msg *e,
 128                                      void *data);
 129 void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp);
 130 int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 131                                      const struct brcmf_event_msg *e,
 132                                      void *data);
 133 int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
 134                                         const struct brcmf_event_msg *e,
 135                                         void *data);
 136 bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 137                                  struct net_device *ndev,
 138                                  struct brcmf_fil_af_params_le *af_params);
 139
 140 #endif /* WL_CFGP2P_H_ */